This should play if your Web browser has WebAssembly enabled (most do). Most examples will play unless they need to load files. The first time you click Play, Csound will spend a few seconds loading, then play. You can edit this code and replay it.
; Select audio/midi flags here according to platform ; Audio out Audio in No messages -odac -iadc -d -M0 -Q0 ; Required settings for WebAudio: sr = 48000 ksmps = 128 nchnls = 2 nchnls_i = 1 ; sr = 44100 ; kr = 4410 ; ksmps = 10 ; nchnls = 2 ; Example by Giorgio Zucco 2007 instr 1 ;Triggered by MIDI notes on channel 1 kstatus init 0 ifund notnum ivel veloc noteondur 1, ifund, ivel, 1 kstatus = kstatus + 1 idel1 = .2 idel2 = .4 idel3 = .6 idel4 = .8 ;make four delay lines mdelay kstatus,1,ifund+2, ivel,idel1 mdelay kstatus,1,ifund+4, ivel,idel2 mdelay kstatus,1,ifund+6, ivel,idel3 mdelay kstatus,1,ifund+8, ivel,idel4 endin ; Dummy ftable f 0 60